Stephen d



(No Model.)

S. D. HORTON. JOINT FOR FIRE POT LININGS.

No. 400,848.l Patented Apr. 2, 1889.y

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- UNITED STATESV PATENT EEicE.

STEPHEN D. HORTON, OF PEEKSKILL, NEV YORK, ASSIGNOR TO NORTON d6 MABIE, OF SAME PLACE. i

JOINT VFOR FIRE-POT LININGS.

SPECIFICATION forming part of Letters Patent No. 400,848, dated April 2, 1889.

Application filed November 19, 1888. Serial No. 291,215. (No model.)

To @ZZ whom it may concern:

Be it known that l, STEPHEN D. HORTON, of Peekskill, in the county of NVestchester and State of New York, have invented certain new and useful Improvements in Joints for Fire-Pot Linings; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in joints for fire-pot linings, and more particularly to joints between meeting sections of fire-brick.

In the manufacture of fire-brick it happens that where the brick are of any considerable width there is lia-ble to be a greater or less shrinkage than the best judgment can foresee, and to make the sets of brick iit a given space it is often found necessary to grind them to the proper Width, or where they shrink more than is calculated to either throw them aside as useless or put up with an inferior iit.

The object of the present invention is to provide a joint which will admit of the employment of sections which are longer or shorter than the intended length without eX- posing an opening to the interior of the tirepot and which will further admit of a ready and eiiicient assembling of the parts.

lith these ends in view my invention oonsists in certain features of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is a view ofv parts of two meeting sections as they appear when assembled for use. Fig. 2 represents the partial side section in the act of being swung into position. Fig. 3 represents the said part-sections separated and placed in the same plane to more clearly show the form of the joint.

In the present case there is shown a portion of an end brick for a fire-pot lining and a portion of one of the back sections contiguous thereto. The same joint, however,which is shown between the two partial sections herein represented would in practice be einployed between the front and back sections and the opposite edges of each end, or,where the front is omitted, between the back sections and the edges of the ends adjacent thereto.

A represents the end section, and B the back section. The end section is provided with a recess, a, at its inner rear edge, which extends from its bottom nearly, but not quite,

`to its top and of sufficient width and depth to receive the end h of the back section, B. At the bottom of the recess a, and adjacent to the front wall of the recess, there is a raised portion, ct, which fits in a recess, h', formed in the lower portion of the end hwhen the parts are assembled, and serves to prevent the end section, A, from vertical displacement. y

For convenience the section A may be termed the female section of the joint and the sectionB the male section of the same.

It is intended in manufacturing the back sections, B, to have them, when burned, of such length that they will extend one-half the depth of the recess c in the section A, and hence,whether the variance tends to increase or decrease their length, they may still be inserted in position without grinding or without exposing an opening, since the top wall, a2, and the front wall, a3, of the recess a will in either instance fit snugly against the top and front of the end h, and hence present a perfect fit. To assemble the parts, the end or female sections, A, are placed in position. One of the back half-sections B is then placed in its position with its end Z) in the recess a, and then the other section B is placed with its end h in engagement with the front wall of the recess a of the opposite section, A, and swung' into position in the plane of its mate, as represented inv dotted lines, Fig. 2. The form of the end ZJ of the section B, as shown in Fig. 3, is that suited for a fire-pot having rounded corners.

It will be observed that the above-described joint would admit of the expansion and contraction of metallic sections where such were employed.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is*

l. A joint for fire-pot linings, formed by a IOO ieinale section and a male section, the female section having a top and front Wall on its li'ace adapted to engage the top and front faces ol they end of ivhe male section, substantially as set forth.

2. A joint', for fire-pot linings, formed by two meeting` sections, 011e of the sections havng' a recess mia-pied to receive the end of the other section and engage J[he iop and front thereof, and with a projection at the bottoni oi' the recess, the other scetioli having' a rccess in its end to receive said projection and lock Jche iirsiv'nained section against vertical displacement, substantially as set forth.

In tesiiiin'iony whereof' I have signed this 15 specification in jshe presence of two suhserihing` Witnesses.

TEPHEN D. NORTON.

DWIGHT S. jl'ljmmicii, STEPHEN LENT. 

